Каталог Sumitomo сверла и развертки - страница 90

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SEC-MultiDrill SMD Type Assembly Front screw clamp design ■ Series Radial serration provides Heads Toolholder(L/D) Applications øDc range Heads steady and precise clamping S Type(1.5D) ø12.0 to ø30.8 M Type(3D) General ø12.0 to ø42.5 MultiDrill design + Specially treated body for Indexable Head MTL Type L Type(5D) ø12.0 to ø42.5 Special coated carbide high wear and rust resistance D Type(8D) Steel ø13.5 to ø42.5 Oil holes are directed at cutting lip 12D Type(12D) ø13.5 to ø25.8 Toolholder S Type(1.5D) ø12.0 to ø30.8 ■ Characteristics M Type(3D) SUS ø12.0 to ø30.8 Indexable Head MEL Type L Type(5D) SS ø12.0 to ø30.8 Indexable type drill with exchangeable drill head, which D Type(8D) FC ø13.5 to ø30.8 has a radial serration design, for high precision and strength. 12D Type(12D) ø13.5 to ø25.8 An exchangeable drill head provides a new cutting edge, higher Indexable Head productivity and cost efficiency with easy tool management. MFS Type S Type(1.5D) Spot Facing ø12.0 to ø30.0 Regrinding allowance of 1.5mm to 3.0mm makes further tool cost Indexable Head MB Type B3 Type(3D) Structural Steel ø24.5 to ø26.7 reductions possible. * Only MTL/MEL/MB are regrindable * The MFS Type can also be used with M Type/L Type/D Type/12D Type toolholders. ■ Tool Life And Cost Comparison ● Tool Life Comparison D Cost Comparison D Results (1) Special grade and coating 100% For regrinding purpose, MTL Type SEC-MultiDrills offer: (2) Without regrinding consideration, tool is Regrinds (x4) brazed drill are used only used until maximum wear permitted. New Drill Double the tool life up to 50-70% of its actual of brazed drills! 2 times tool life! Regrinds (x4) tool life potential. Faster tool No. of Workpieces Reduced costs! New Drill SEC-MultiDrill MTL Type is Drill tolerance and Tool Cost used up to 100% replacement! tool life are relatively Regrinds (x4) lower after 50% D Workpiece Example regrinding. 10 Drill Heads New Drill Regrinds (x4) Hole Size: ø18.0mm Depth: 50mm New Drill SEC-MultiDrill MTL Type Holder Regrinds (x4) Insert: SMDT1800MTL New Drill Holder: SMDH180M 0 Work Material: Machine Component (S50C) SEC-MultiDrill Brazed Drill SEC-MultiDrill Brazed Drill Wet MTL Type MTL Type ■ Drilling Precision ● Tool Strength SEC-MultiDrill MTL Type: Normal Wear SEC-MultiDrill MTL Type D Durability Comparison Competitor A 18.10 Competitor B Brazed Drill Size (mm) 18.05 After 900 holes (equivalent to 34m) SEC-MultiDrill MTL Type 38mm Competitor's A: Large Wear J 18.00 Brazed Drill Drilling Hole 17.95 After 900 holes (equivalent to 34m) 0 0.2 0.4 0.6 0.8 1.0 1.2 Competitor's B: Edge Chipping Feed Rate at which Drill was Damaged f (mm/rev) 0 200 400 600 800 1000 Solid No. of Holes Special Work Material: S50C External Diameter: ø18.0mm Work Material: S50C External Diameter: ø16.0mm Cutting Conditions: vc=70m/min f=0.25mm/rev Cutting Conditions: vc=80m/min Hole Depth 38mm (Through) Wet After 670 holes (equivalent to 25m) Hole Depth 38mm Indexable Reamer ■ 12D Type Recommended Drilling Method Use a hydro chuck, milling chuck, or collet chuck to hold the 12D drill body Brazed (1) Prepare a guide hole with a SMDH○○○M (3D drill holder) + MTL type (head) (3) Increase rotation speed until that for deep drilling, and start normal drilling operation ● Use a 3D drill body, with a drill head of the same diameter Others (same catalog number) as the 12D drill body. * Depending on the NC machine, a normal drilling operation instruction may be issued before the set rotation speed is reached, so we recommend entering a dwell instruction H=Drill diameter×1 to 1.5 times depth before the normal drilling operation instruction. H Increase rotation speed (2) Feed the SMDH○○○-12D (12D drill body) + MTL Type (head) through the guide hole at low rotation speed (4) After drilling, reduce rotation speed and retract the drill from the work material ● Rotation speed: 500min-1 ● Feed rate: 1,000 to 2,000mm/min ● Rotation speed: 500min-1 ● Feed rate: 1,000 to 2,000mm/min * If the drill is fed into the guide hole * Retracting a drill from the work material at the set cutting speed, peripheral at a high rotation speed may result in run-out may cause shoulder damage. shoulder damage due to run-out. 1 Stop 1mm away from the guide hole depth Change rotation speed to 500min-1 J68